@article{fdi:010073993,
  title = {{W}ater and suspended sediment budgets in the {L}ower {M}ekong from high-frequency measurements (2009-2016)},
  author = {{H}a, {D}. {T}. and {O}uillon, {S}ylvain and {V}inh, {G}. {V}.},
  editor = {},
  language = {{ENG}},
  abstract = {{B}ased on a new dataset of high temporal resolution of water discharge (hourly frequency) and suspended sediment concentration (twice daily frequency at ebb and flood tides) at {C}an {T}ho and {M}y {T}huan stations during the 2009-2016 period, monthly and annual flow and suspended sediment flux of the lower {M}ekong {R}iver were calculated. {T}he present water discharge of the {M}ekong {R}iver to the sea can be estimated to be 400 km(3) yr(-1), +/- 100 km(3) yr(-1) depending on {E}l {N}ino {S}outhern {O}scillation ({ENSO}), and the present sediment supply to the sea can be estimated to be 40 {M}t yr(-1), +/- 20 {M}t yr(-1) depending on {ENSO}. {T}he {ENSO} influence (proxied by the {S}outhern {O}scillation {I}ndex-{SOI}) on {Q} (water discharge) and {Q}s (sediment flux) is at maximum at a time lag of 8-9 months. {T}he 2010-2011 {L}a {N}ina event increased the water supply by almost 30% and the sediment supply by 55% in 2011. {T}he 2015-2016 {E}l {N}ino event decreased the water supply by 20% and the sediment supply by 50% in 2015-2016. {T}he average net water discharge was 12,550 m(3) s(-1) in neutral years. {T}he {T}ien {R}iver at {M}y {T}huan accounted for similar to 52%, and the {H}au {R}iver at {C}an {T}ho for similar to 48% of the total {M}ekong {R}iver discharge, with small variations (of the order 1%) amongst years. {I}n terms of suspended sediment delivery to the sea, the {T}ien {R}iver accounted for a more variable portion of 55% in neutral years, 57.3% in 2015-2016 ({E}l {N}ino) and 62% in 2011 ({L}a {N}ina). 80% of water discharge occurred during the flood season ({J}uly-{D}ecember) and 20% occurred in the low flow season ({J}anuary-{J}une), the proportion being 91% and 9% for the sediment supply. {P}revious estimates of annual sediment supplies to the sea (145-160 {M}t yr(-1)) had been established before 2003. {P}ossible origins of the recent reduction by similar to 75% of sediment supply are presented and discussed.},
  keywords = {{M}ekong ; river discharge ; suspended sediment ; dams ; {T}ien {R}iver ; {H}au {R}iver ; {ENSO} ; {E}l {N}ino ; {L}a {N}ina ; {VIET} {NAM} ; {MEKONG} {DELTA} ; {HAU} {COURS} {D}'{EAU} ; {TIEN} {COURS} {D}'{EAU}},
  booktitle = {},
  journal = {{W}ater},
  volume = {10},
  numero = {7},
  pages = {art. 846 [24 ]},
  ISSN = {2073-4441},
  year = {2018},
  DOI = {10.3390/w10070846},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073993},
}